GRIP1 and lipoma: Seven additional ESR1-e6>fusions (Table 1) were identified by Priestley and colleagues in ER+ MBC, including aqryl hydrocarbon receptor nuclear translocator 2, ARNT2 (ESR1-e6>ARNT2); LIM domain containing preferred translocation partner in lipoma, LPP (ESR1-e6>LPP); nuclear receptor coactivator 1, NCOA1 (ESR1-e6>NCOA1); transcription factor 12, TFC12 (ESR1-e6>TCF12); clathrin interactor 1, CLINT1 (ESR1-e6>CLINT1); glutamate receptor interacting protein 1, GRIP1 (ESR1-e6>GRIP1) and trinucleotide repeat containing adaptor 6B, TNRC6B (ESR1-e6>TNRC6B).